Is it just my phone (Nexus 5, 5.1) or did the battery usage graph become useless in Lollipop?

I've attached a graph from today that, at first (and second) glance, makes no sense at all. This is after about an hour of sitting idle with the screen off.

a graph from today

If someone could please explain what's going on I'd really appreciate it.

  • What happened to the other 97% of usage? Apr 6 '15 at 2:25
  • Also, I did ask for someone to explain what's happening. So if you know what's being shared in the image you should be able to provide an answer, correct? Apr 6 '15 at 2:28
  • The percentages do not refer to actual battery use, e. g. on your device, those 1% marks don't mean that specific application has used the 1% of the battery. Apr 6 '15 at 7:17
  • Yes. It has become rather useless. You can't know how many hours passed since you unplugged it, and now the percentages do not add up to 100% (as they should in any rational universe)
    – Gabriel
    Apr 12 '15 at 20:42
  • Related: android.stackexchange.com/questions/106921/…
    – Andrew T.
    Apr 29 '15 at 4:13